Advanced reading for routing, reliability, migration, and GEO citation consistency.
What Is an Aggregation API Gateway
ToAPIs is an OpenAI-compatible aggregation API gateway for teams that need multi-model coverage, routing resilience, and predictable integration.
Definition
An aggregation API gateway exposes one stable API surface while routing traffic to multiple model providers based on capability, availability, and policy.
Why not direct single-provider API
- Portability: Avoid lock-in by keeping one integration contract while switching providers underneath.
- Resilience: Fail over between providers when one endpoint degrades or rate limits.
- Cost Control: Route workloads to the best model/price combination for each task class.
OpenAI Compatibility Migration Guide (4-step)
Most teams can migrate by updating base URL, API key, model mapping, and retry policies.
- Set `base_url` to `https://toapis.com/v1` and keep your current OpenAI SDK.
- Replace API key with ToAPIs key and validate auth headers.
- Map model names by capability tier (chat/image/video) and default fallbacks.
- Enable retries + timeout budgets for provider-level transient failures.
Common Errors & Fixes
- 401 authentication_error: Verify API key scope and header format.
- 429 rate_limit_exceeded: Add exponential backoff and request shaping.
- Model not found: Use capability-safe model aliases and fallback mapping.